Publications by authors named "M Blatt"
Accelerating stomatal kinetics through synthetic optogenetics and mutations that enhance guard cell K+ flux has proven a viable strategy to improve water use efficiency and biomass production. Stomata of the model C4 species Gynandropsis gynandra, a relative of the C3 plant Arabidopsis thaliana, are similarly fast to open and close. We identified and cloned the guard cell rectifying outward K+ channel (GROK) of Gynandropsis and showed that GROK is preferentially expressed in stomatal guard cells.
View Article and Find Full Text PDFStomata respond slowly to changes in light when compared with photosynthesis, undermining plant water-use efficiency (WUE). We know much about stomatal mechanics, yet efforts to accelerate stomatal responsiveness have been limited despite the breadth of potential targets for manipulation. Here, we use mechanistic modeling to establish a hierarchy of putative targets affecting stomatal kinetics.
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- Secretory trafficking in plant cells relies on SNARE proteins, with SYP132 being crucial for plant development and immune responses, working alongside other syntaxins SYP121 and SYP122.
- SYP132 plays a key role in transporting proteins like the H+-ATPase AHA1 and aquaporin PIP2;1, and it affects the secretion of defense-related proteins PR1, PR2, and PR5 when plants encounter pathogens.
- Research using advanced mass spectrometry has revealed that SYP132 not only supports basic secretion in Arabidopsis leaves but also enhances the plant's defense mechanisms against bacterial infections.
The activity of outward-rectifying but not inward-rectifying K + channels of stomata follows the diel cycle of crassulacean acid metabolism.
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- In some algae, there's a special part called the pyrenoid that helps capture CO2 better using a protein called Rubisco.
- Researchers studied the protein BST4, which is found in the pyrenoid tubules, to see how it works with Rubisco.
- They discovered that BST4 isn’t just holding things together but is more like a gate for ions, helping the algae grow better when light changes.